 <!DOCTYPE html>
  <html>
  <head> 
      <meta charset="utf-8" /> 
      <title>静态html页面(runoob.com)</title> 
        <script src="js/jquery.min.js"></script> 
        <script src="js/first.js></script>“
  </head> 
  <body> 
       <div id="testDiv">这是一个标题</div> 
       <button>点我<button>  
 </body>
 </html>